1.服务器程序：
Java代码 package com; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket; import java.util.ArrayList; import java.util.List; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; /** * com Server * * @author Aina.huang E-mail: 674023920@qq.com * @version 创建时间：2010 Jul 14, 2010 10:45:35 AM 类说明 */ public class Main { private static final int PORT = 9999;// 端口监听 private List<Socket> mList = new ArrayList<Socket>();// 存放客户端socket private ServerSocket server = null; private ExecutorService mExecutorService = null;// 线程池 /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub new Main(); } public Main() { try { server = new ServerSocket(PORT); mExecutorService = Executors.newCachedThreadPool();// 创建一个线程池 System.out.println("Server Start..."); Socket client = null; while (true) { client = server.accept(); mList.add(client); mExecutorService.execute(new Service(client));// 开启一个客户端线程. } } catch (Exception ex) { ex.printStackTrace(); } } public class Service implements Runnable { private Socket socket; private BufferedReader in = null; private String msg = ""; public Service(Socket socket) { this.socket = socket; try { in = new BufferedReader(new InputStreamReader(socket .getInputStream())); msg = "user:" + this.socket.getInetAddress() + " come total:" + mList.size(); this.sendmsg(); } catch (IOException e) { e.printStackTrace(); } } public void run() { // TODO Auto-generated method stub try { while (true) { if ((msg = in.readLine()) != null) { if (msg.equals("exit")) { System.out.println("sssssssssss"); mList.remove(socket); in.close(); msg = "user:" + socket.getInetAddress() + " exit total:" + mList.size(); socket.close(); this.sendmsg(); break; } else { msg = socket.getInetAddress() + " : " + msg; this.sendmsg(); } } } } catch (Exception ex) { System.out.println("server 读取数据异常"); ex.printStackTrace(); } } /** * 发送消息给所有客户端 */ public void sendmsg() { System.out.println(msg); int num = mList.size(); for (int i = 0; i < num; i++) { Socket mSocket = mList.get(i); PrintWriter pout = null; try { pout = new PrintWriter(new BufferedWriter( new OutputStreamWriter(mSocket.getOutputStream())), true); pout.println(msg); } catch (IOException e) { e.printStackTrace(); } } } } } package com; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket; import java.util.ArrayList; import java.util.List; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; /** * com Server * * @author Aina.huang E-mail: 674023920@qq.com * @version 创建时间：2010 Jul 14, 2010 10:45:35 AM 类说明 */ public class Main { private static final int PORT = 9999;// 端口监听 private List<Socket> mList = new ArrayList<Socket>();// 存放客户端socket private ServerSocket server = null; private ExecutorService mExecutorService = null;// 线程池 /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub new Main(); } public Main() { try { server = new ServerSocket(PORT); mExecutorService = Executors.newCachedThreadPool();// 创建一个线程池 System.out.println("Server Start..."); Socket client = null; while (true) { client = server.accept(); mList.add(client); mExecutorService.execute(new Service(client));// 开启一个客户端线程. } } catch (Exception ex) { ex.printStackTrace(); } } public class Service implements Runnable { private Socket socket; private BufferedReader in = null; private String msg = ""; public Service(Socket socket) { this.socket = socket; try { in = new BufferedReader(new InputStreamReader(socket .getInputStream())); msg = "user:" + this.socket.getInetAddress() + " come total:" + mList.size(); this.sendmsg(); } catch (IOException e) { e.printStackTrace(); } } public void run() { // TODO Auto-generated method stub try { while (true) { if ((msg = in.readLine()) != null) { if (msg.equals("exit")) { System.out.println("sssssssssss"); mList.remove(socket); in.close(); msg = "user:" + socket.getInetAddress() + " exit total:" + mList.size(); socket.close(); this.sendmsg(); break; } else { msg = socket.getInetAddress() + " : " + msg; this.sendmsg(); } } } } catch (Exception ex) { System.out.println("server 读取数据异常"); ex.printStackTrace(); } } /** * 发送消息给所有客户端 */ public void sendmsg() { System.out.println(msg); int num = mList.size(); for (int i = 0; i < num; i++) { Socket mSocket = mList.get(i); PrintWriter pout = null; try { pout = new PrintWriter(new BufferedWriter( new OutputStreamWriter(mSocket.getOutputStream())), true); pout.println(msg); } catch (IOException e) { e.printStackTrace(); } } } } }2.客户端程序：
Java代码 package com.Aina.Android; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.Socket; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class Test extends Activity implements Runnable { /** Called when the activity is first created. */ private TextView tv_msg = null; private EditText ed_msg = null; private Button btn_send = null; private Button btn_login = null; private static final String HOST = "192.168.0.132"; private static final int PORT = 9999; private Socket socket = null; private BufferedReader in = null; private PrintWriter out = null; private String content = ""; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); tv_msg = (TextView) this.findViewById(R.id.TextView); ed_msg = (EditText) this.findViewById(R.id.EditText01); btn_login = (Button) this.findViewById(R.id.Button01); btn_send = (Button) this.findViewById(R.id.Button02); try { socket = new Socket(HOST, PORT); in = new BufferedReader(new InputStreamReader(socket .getInputStream())); out = new PrintWriter(new BufferedWriter( new OutputStreamWriter(socket.getOutputStream())), true); } catch (Exception ex) { ex.printStackTrace(); ShowDialog("登陆异常:" + ex.getMessage()); } btn_send.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub String msg = ed_msg.getText().toString(); if (socket.isConnected()) { if (!socket.isOutputShutdown()) { out.println(msg); } } } }); new Thread(this).start(); } public void ShowDialog(String msg) { new AlertDialog.Builder(this).setTitle("提示").setMessage(msg) .setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }).show(); } public void run() { try { while (true) { if(socket.isConnected()){ if(!socket.isInputShutdown()){ if ((content = in.readLine()) != null) { Log.i("TAG", "++ "+content); content += "/n"; mHandler.sendMessage(mHandler.obtainMessage()); }else{ } } } } } catch (Exception ex) { ex.printStackTrace(); } } public Handler mHandler = new Handler() { public void handleMessage(Message msg) { super.handleMessage(msg); Log.i("TAG", "-- "+msg); tv_msg.setText(tv_msg.getText().toString() + content); } }; } package com.Aina.Android; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.Socket; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class Test extends Activity implements Runnable { /** Called when the activity is first created. */ private TextView tv_msg = null; private EditText ed_msg = null; private Button btn_send = null; private Button btn_login = null; private static final String HOST = "192.168.0.132"; private static final int PORT = 9999; private Socket socket = null; private BufferedReader in = null; private PrintWriter out = null; private String content = ""; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); tv_msg = (TextView) this.findViewById(R.id.TextView); ed_msg = (EditText) this.findViewById(R.id.EditText01); btn_login = (Button) this.findViewById(R.id.Button01); btn_send = (Button) this.findViewById(R.id.Button02); try { socket = new Socket(HOST, PORT); in = new BufferedReader(new InputStreamReader(socket .getInputStream())); out = new PrintWriter(new BufferedWriter( new OutputStreamWriter(socket.getOutputStream())), true); } catch (Exception ex) { ex.printStackTrace(); ShowDialog("登陆异常:" + ex.getMessage()); } btn_send.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub String msg = ed_msg.getText().toString(); if (socket.isConnected()) { if (!socket.isOutputShutdown()) { out.println(msg); } } } }); new Thread(this).start(); } public void ShowDialog(String msg) { new AlertDialog.Builder(this).setTitle("提示").setMessage(msg) .setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }).show(); } public void run() { try { while (true) { if(socket.isConnected()){ if(!socket.isInputShutdown()){ if ((content = in.readLine()) != null) { Log.i("TAG", "++ "+content); content += "/n"; mHandler.sendMessage(mHandler.obtainMessage()); }else{ } } } } } catch (Exception ex) { ex.printStackTrace(); } } public Handler mHandler = new Handler() { public void handleMessage(Message msg) { super.handleMessage(msg); Log.i("TAG", "-- "+msg); tv_msg.setText(tv_msg.getText().toString() + content); } }; } Java代码 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:id="@+id/TextView" android:singleLine="false" android:layout_width="fill_parent" android:layout_height="wrap_content" /> <EditText android:hint="content" android:id="@+id/EditText01" android:layout_width="fill_parent" android:layout_height="wrap_content"> </EditText> <Button android:text="login" android:id="@+id/Button01" android:layout_width="fill_parent" android:layout_height="wrap_content"> </Button> <Button android:text="send" android:id="@+id/Button02" android:layout_width="fill_parent" android:layout_height="wrap_content"> </Button> </LinearLayout>